Lauren I managed to get my refund off esatBT earlier this week. I nearly fell over from shock when I saw it. It is possible to get the refund but it takes a long time and a lot of effort. It's sad to say that BT only did something when Conreg contacted them on my behalf. Any decent company would have sorted this problem out in days not months, one or two phone calls not twenty plus calls and the same or more emails. They are a disgrace. I've cancelled my DD with them and if I ever have any dealings with them again it will be far too soon.
I got a letter from BT after Comreg wrote to them about my case, thanking me for contacting BT via comreg, the letter is signed by Linda Loughran. She gives a number inviting me to contact her if I have any questions. It's not actually her number (LOL), I rang the number and it goes straight to the voicemail of another complaints officer. Of course I've rang it a few times, left a message but nobody called me back (what a surprise)
Actually, I encourage anyone reading this who has had similiar problems with esatBT to check out a thread on boards.ie (in the broadband section). A member named surveys is compiling a dossier of complaints against BT and sending them to BT's European Director. I think its a good idea and have sent him an email giving my story. Check it out if you're so inclined. You'll get your refund eventually + a few extra grey hairs, pith that .....
EDIT: I just noticed you started this thread Lauren, last November ... Comreg will help you get your money, don't worry your not the only 1 on the BT billing merry go round, peace and try not to get too frustrated